Pith Number

pith:ZYFTQZDU

pith:2016:ZYFTQZDU5X22OHI5MUA65RAYDF

not attested not anchored not stored refs pending

A dichotomy for the kernel by $H$-walks problem in digraphs

C\'esar Hern\'andez-Cruz, Hortensia Galeana-S\'anchez

arxiv:1605.09589 v1 · 2016-05-31 · math.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZYFTQZDU5X22OHI5MUA65RAYDF}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T01:13:10.533890Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ce0b386474edf5a71d1d6501eec41819695f9483ff9a2036e725bc21fb625d04

Aliases

arxiv: 1605.09589 · arxiv_version: 1605.09589v1 · doi: 10.48550/arxiv.1605.09589 · pith_short_12: ZYFTQZDU5X22 · pith_short_16: ZYFTQZDU5X22OHI5 · pith_short_8: ZYFTQZDU

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/ZYFTQZDU5X22OHI5MUA65RAYDF \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: ce0b386474edf5a71d1d6501eec41819695f9483ff9a2036e725bc21fb625d04

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8225f9e3a907a27d3a46015cc5e36c439fd13e0cc415cd44b8d9b1366ba52bc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-05-31T12:02:36Z",
    "title_canon_sha256": "ead8e061101994bb9be3d62eeea5e2440ba24a3af4b69d48b730bfb44da6e1cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.09589",
    "kind": "arxiv",
    "version": 1
  }
}